operatic bass singer
Othmar Schoeck, Natalie Hinsch-Gröndahl, Richard Miller, Helmut Fehn, WDR Sinfonieorchester Köln, Richard Kraus, Ira Malaniuk, Ernst Haflinger, Peter Lagger, Radio-Orchester Beromünster, Erich Schmid
Giuseppe Verdi, Dietrich Fischer‐Dieskau, Grace Bumbry, Peter Lagger, Ermanno Lorenzi, Wolfgang Sawallisch
